Canadian Prime Minister Justin Trudeau’s office announced Monday that he will not attend Fidel Castro’s funeral after he received backlash for praising the former communist dictator as a “remarkable leader.”

More than a quarter-million Syrians trapped in eastern Aleppo are at risk of dying over the next 20 days due to relentless aerial bombings by the Assad regime and Russian allies that have left the city with a dwindling food supply and sparse access to medical care.

Donald Trump apologized for the U.S.-led bombings of Serbia in the 1990s to stop ethnic cleansing by Serb militias against predominately Muslim groups during Bill Clinton’s presidency, according to the Serbian weekly publication Nedeljnik.

Secretary of State John Kerry said Friday that Russia and Syria should be subject to a war crimes investigation for their assaults on Syrian civilians during the country’s ongoing civil war, signaling another sign of heightened tensions between Washington and Moscow.

The United Nations remains unable to transport humanitarian aid into Syria despite an ongoing ceasefire due to the Bashar al Assad regime’s failure to authorize the deliveries, the U.N.’s special envoy for the war-torn country said Thursday.